I love my Jazzlab Saxholder for my Bari. When I had a Conn 12m many years ago, I had a jiffy and it worked very well but I prefer not to play with the horn on a stand if possible.
I second the saxholder - it has made playing the bari a pleasure, seated or standing (it is better standing but perfectly acceptable when seated). The only thing to be careful of is that it pops off your shoulders if you lean forward while seated (e.g. picking up something from the floor).
